1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe445fd61b57f479521fa8a90123204ed8d0899e18ad588c296efc3a7b8c356ba. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/618e3ba1-e29d-4e61-9584-6c029ca5acdb.json and https://artists.proofprofile.net/proofs/artist/618e3ba1-e29d-4e61-9584-6c029ca5acdb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x193ee923577b6349229618459ee4d7ca11f1e8f1ea6816e54942a580841393da. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX9P2381697.
SOMOS DE LA CALLE (D Ricky el Travieso, Claswey)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdacc56bff48039c93f0a1c08ff4fd65b7504dda22fa2d951dc562234c89307a7. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA52463258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8496bf496793080c645b7b3cd1c68b6d2b414a706bae7f6b701d8acff74f5440. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA52451105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaac06e53c4ef320a2035c52d1c807f07a99a3b60c44e9613da4ab224525e2b80. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA72475248.
PARA METER LO MIO (ESTALIN FLOW, CLASWEY Y DRICKY EL TRAVIESO)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04cea6e9206e2b990876d9f9dc39d6ab8cddb8ee0033f00f48d5090d173c16e9. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA72492739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92edce76db8fb5dab978c62b352b7c58c103ae974823b734673576c564bf14d7. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA82428977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe94e568105692c7f0d4f5032d77fde58d5af78d86d51848327023987f5f57e28. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES52433664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2edefa74741c147c64eb3e5b9ebae201dcfa2041db8b2aac3c976721e3b7535. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES52431964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5441f8154112c50f10ff02bb431f52303cfc26a3978b089724f179379b58a7a. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA82494938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf3826154f8ccbd1434be47440d95bd6394420ffa040eb8352d42cd8abcfb00. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA82493706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78489002a762952c3377ce78f55a534f5b2dbc2cb2dbe65fbc776e13d0e16c7f. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA82494940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c996f45e53e543d91178cd4e27be9bd02d1570aa14611341cbf728c7c4b2020. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES52423549.
Pal Pada (feat.Popi El Internacional, Foso Wit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e91d3046b3e2f60d9fa50e209a6137ba988881c3f4f03e278691c5a53012d2b. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES62409857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab6f122ea1c074d293904f0fc7ed982b354c1ebd17b36b984523f61caaa162a3. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES52424791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b7038c5f5895e0527d6e8ff9ee4f7f1d0287969575e90837972e04032564e60. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES52445168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd39394b09723324527e6da389d56648ceb057ba718ab76a7c1b02e4dc87e4cd3. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES52424781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba802fad8969b6daa968f2ddeb18dcfa74cb6fffbb461e8a376c98f333655db2. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES62416927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f6f7d8324bc7d54dc684a48428b1e8789d115ac2fd0b690dd8b55c71b8f3b4b. Chain 2 (Bitcoin): anchored in block 958668 (2026-07-19T05:16:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES62419685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14ed1f64031a069e4f038e8b706be8bafd65342ca78d991f99b2f3072ded9d4a. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES52424765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x171e6cccc79bee35434ced0491704575c805ade26365ad94e9bdcdcc9370a337. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:54:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES52478801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0f663c29a74bf3d8e2ba7269a03d7fb45a6ab215c1174dfe3b77ecb99310670. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES62462813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d06862270e7ea818592eb499b61de8c8e317bfec76982a393317dc3790055ed. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:48:53Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN62448657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79da3e872c70d32e8fd8261356c7073066720fb42a6a698b1369fc3fbec3c3f0. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ7W2469831.